3) [20pts] Write a program so that for given M, it computes the sum s=i=1Mk1. (Hint: Use the while-loop. As we see in in the class, you can update s as s=s+k and you need to increase the k in each step such that k=k+1 ). 3) [20pts] Write a program so that for given M, it computes the sum s=i=1Mk1. (Hint: Use the while-loop. As we see in in the class, you can update s as s=s+k and you need to increase the k in each step such that k=k+1 )